816547 ÷ 87 
The aim is to understand the frequency of 87 in 816547.

Going ahead to step 1:
87 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 87

Moving on to step 2:
When dividing 81 by 87, we get 0 with a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Bring next digit (6) of the dividend behind the 81 and repeat the process: 816 / 87

Moving on to step 3:
816 divided by 87 is 9 with a remainder of 33.
Write down 9 as next digit of the result. 
Result so far: 9.0
Subtracting 783 from 816 leaves us with 33.
Bring next digit (5) of the dividend behind the 33 and repeat the process: 335 / 87

On to step 4:
The number 87 fits into 335 3 times, leaving a remainder of 74.
The number 3 becomes the next digit in our result. 
Result so far: 93.0
If we subtract 261 from 335, we get 74.
Grab the next digit (4) from the dividend, add it to 74, then carry on: 744 / 87

Advancing to step 5:
If we divide 744 by 87, we get 8 and a remainder of 48.
The number 8 becomes the next digit in our result. 
Result so far: 938.0
Subtract 696 from 744 to get 48.
Grab the next digit (7) from the dividend, add it to 48, then carry on: 487 / 87

Moving on to step 6:
487 divided by 87 is 5 with a remainder of 52.
Put 5 as the next digit of the answer. 
Result so far: 9385.0
If we take 435 away from 487, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 7:
87 can be fit into 520 5 times, resulting in a remainder of 85.
Write down 5 as next digit of the result. 
Result so far: 9385.5
Subtract 435 from 520 to get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Moving on to step 8:
If we divide 850 by 87, we get 9 and a remainder of 67.
The next digit of our result is 9. 
Result so far: 9385.59
Subtract 783 from 850 to get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Going ahead to step 9:
670 divided by 87 is 7 with a remainder of 61.
Write down 7 as next digit of the result. 
Result so far: 9385.597
Subtract 609 from 670 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Let's proceed to step 10:
If we divide 610 by 87, we get 7 and a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 9385.5977
Subtracting 609 from 610 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

After the division, we end up with 9385.5977 and a remainder of 1e-05.